Hall explained: "[Dexter is] taking responsibility for the fact that his son needs more than to be shielded from [his] dark passenger. He also will need something positive [to hold on to].

"It's an awareness that his son may have an appetite for those things... that brings [Dexter] to an appreciation that it's something he might want to explore."

Hall added that Dexter's relationship with faith and religion "characterises" the show's sixth run, saying: "I think all the characters in one way or the other will serve to move [Dexter] along in his path."

He also revealed that "conversations are happening" regarding the long-term future of Dexter.

"It's hard for me to think that this will be our last [season]," he said. "Beyond that, it's hard to say."